AirHint found the following cheapest return flights from Newark (EWR) to Georgetown (GEO) in September 2025 (see full year).

Return flights

12 Sep - 16 Sep	United
12 Sep - 19 Sep	United
11 Sep - 18 Sep	American Airlines
13 Sep - 22 Sep	American Airlines
17 Sep - 23 Sep	American Airlines
26 Sep - 03 Oct	Spirit Airlines
19 Sep - 21 Sep	Copa
26 Sep - 10 Oct	Copa
27 Sep - 04 Oct	Copa
18 Sep - 24 Sep	Copa
18 Sep - 23 Sep	Copa
19 Sep - 26 Sep	Copa
19 Sep - 28 Sep	Copa

Also check the deals for one-way flights from Newark to Georgetown in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Newark to Georgetown in September from $465

Return flights